Holic H28

Hashrate 28.0 TH/s Power 2,100 W Efficiency 75.0 J/TH

Bitdeer SealMiner A3 Pro Air

Hashrate 290.0 TH/s Power 3,625 W Efficiency 12.5 J/TH

Holic H28 vs Bitdeer SealMiner A3 Pro Air

Side-by-side specs, profitability, and home mining comparison.

Specifications Comparison

Holic H28	Specification	Bitdeer SealMiner A3 Pro Air
28.0 TH/s	Hashrate	290.0 TH/s
2,100 W	Power Consumption	3,625 W
75.0 J/TH	Efficiency	12.5 J/TH
—	Noise Level	75 dB
—	Weight	15.5 kg
7,165 BTU/hr	BTU Output	12,369 BTU/hr
26/100	Home Mining Score	30/100
—	Release Year	—
SHA-256	Algorithm	SHA-256
Holic	Manufacturer	Bitdeer

Profitability Comparison

Electricity Rate:

$/kWh

Holic H28

Daily Revenue 0.00001289 BTC $1.02

Daily Electricity -$5.04

Daily Profit -$4.02

Monthly -$120.64

Yearly -$1,467.75

Bitdeer SealMiner A3 Pro Air

Daily Revenue 0.00013345 BTC $10.55

Daily Electricity -$8.70

Daily Profit $1.85

Monthly $55.55

Yearly $675.84

Based on BTC price of $79,066 and current network difficulty as of May 15, 2026. Actual results vary.

Verdict

Run the numbers across every spec and the Bitdeer SealMiner A3 Pro Air edges it: 4 of 5 factors go its way (efficiency, hashrate, home mining score, noise level). The standout gap is 936% more hashrate (28.0 vs 290.0 TH/s) in the Bitdeer SealMiner A3 Pro Air's favour. The Holic H28 holds the edge in power consumption. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.

Winner: Bitdeer SealMiner A3 Pro Air — wins on 4 of 5 factors

Spec Deltas

The Holic H28 and Bitdeer SealMiner A3 Pro Air diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":

Bitdeer SealMiner A3 Pro Air 936% more hashrate (28.0 vs 290.0 TH/s)
Holic H28 42% better power draw (2,100 vs 3,625 W)
Bitdeer SealMiner A3 Pro Air 83% better efficiency (75.0 vs 12.5 J/TH)
Bitdeer SealMiner A3 Pro Air 73% more heat output (7,165 vs 12,369 BTU/hr)
Bitdeer SealMiner A3 Pro Air 15% more home mining score (26.0 vs 30.0)

Cost & ROI Over Time

A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.

Holic H28	Metric	Bitdeer SealMiner A3 Pro Air
—	Upfront cost (MSRP)	$4,895
-$4.02	Daily net profit	$1.85
-$1,468	Net after 1 year	-$4,219
-$2,935	Net after 2 years	-$3,543
-$4,403	Net after 3 years	-$2,867
—	Payback period	Takes ~7.2 years to pay back at current rates

Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.

Best For...

Best for Profitability

Bitdeer SealMiner A3 Pro Air

$5.87/day higher profit at current rates.

Best for Home Mining

Bitdeer SealMiner A3 Pro Air

Score: 30/100. 75 dB noise level.

Best for Efficiency

Bitdeer SealMiner A3 Pro Air

12.5 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Which makes more money, the Holic H28 or the Bitdeer SealMiner A3 Pro Air?

At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A3 Pro Air is more profitable at $1.85/day compared to $-4.02/day for the Holic H28. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Which is quieter, the Holic H28 or Bitdeer SealMiner A3 Pro Air?

The Bitdeer SealMiner A3 Pro Air is quieter at 75 dB compared to the Holic H28 at 0 dB. For home mining, lower noise levels make a significant difference in livability.

For mining at home, should I pick the Holic H28 or the Bitdeer SealMiner A3 Pro Air?

The Bitdeer SealMiner A3 Pro Air scores 30/100 on our Home Mining Score (vs 26/100 for the Holic H28). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.

What is the efficiency difference between Holic H28 and Bitdeer SealMiner A3 Pro Air?

The Holic H28 runs at 75.0 J/TH while the Bitdeer SealMiner A3 Pro Air runs at 12.5 J/TH — a difference of 62.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 83% better efficiency (75.0 vs 12.5 J/TH).

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